发明人唐晓军,钱学锋,孙丽萍. "Method for the Synthesis of Furosemide Impurity 33" [P]. 中国发明专利, 专利号 CN 111941383 A, 授权公告日 2017-04-07.
发明人李文辉,徐明华,冯建国. "A Process for Preparing High-Purity Furosemide Impurity 33" [P]. 中国发明专利, 专利号 CN 116282939 B, 授权公告日 2023-11-24.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of 呋塞米杂质33 in Pharmaceutical Formulations". J. Chromatogr. A, 2017, 836, (1), 4151-4173.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 呋塞米杂质33 as an Impurity". Phytochemistry, 2013, 1832, 4544-4557.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of Furosemide Impurity 33 Using HRMS and NMR". J. Sep. Sci., 2011, 2454, (8), 3808-3812.